package cn.feng.thinkInJava.a4_1_面向对象.a3_继承.test;

public class Ext1 extends A{
	static{
		System.err.println("d");
	}
	
	
	B b=new B();
	@SuppressWarnings("unused")
	public static void main(String[] args) {
		Ext1 ext1=new Ext1();
				
	}

}


class B{

	public B() {
		super();
		System.out.println("b");
	}
	
}

class A{
	
	A(){
		System.out.println("A");
	
	}
}